Among those featured: the newly affianced models Anja Rubik and Sasha Knezevic, who went to Central Park on their first official date. According to Rubik: "We actually came wearing identical Rag & Bone shirts and Helmut Lang jeans." There's Coco Rocha and her husband, James Conran, who are celebrating their first Valentine's Day married by going to see Prince — his favorite musician — in concert; and Angela Lindvall and Mark Wystrach, an actor and co-founder of People's Shoe (a line of eco-friendly footwear). They had their first date two years ago, Lindvall says — "We took his Volkswagen, went surfing, ate shrimp burritos" — and now reside together on seven acres in Los Angeles's Topanga Canyon, where they've planted an organic garden and 60 fruit trees.

Alessandra Ambrosio and her fiance, Jamie Mazur, who owns a denim company, met at a mutual friend's wedding in Rio de Janeiro. But they didn't start dating until two years later, when they ran into each other at Coachella. Ambrosio says of Mazur: "I always have new jeans, and because he has to follow trends, I get the best gifts — like Louboutins and vintage sunglasses. One Valentine's Day, he learned all my favorite Pearl Jam songs and serenaded me."

And rounding out the bunch, there's Aminata Niaria, who met Laurence Dennis (he works at British Embassy in Paris) at a Halloween party he hosted five years ago. He was a mummy, she was Catwoman. And models Bonnie Chen and Rock Ji, who met backstage two years ago at Beijing fashion show. Soon after, he surprised her by showing up at the University of Pennsylvania campus, where she was majoring in psychology.